Using the DeWalt DCF850B is easy. First, make sure the tool is properly charged with a 20V MAX* battery. When you're ready to work, select the appropriate speed on the variable 3 - speed trigger according to the task. For driving large - diameter screws, the high - torque setting will work best. The compact design allows you to easily reach into tight spots. When you're in a dim area, turn on the 3 - LED work light to improve visibility. As for maintenance, keep the tool clean. After use, wipe it down with a dry cloth. Periodically check the battery for proper charge and condition. Avoid using the tool in extremely wet or dusty environments. If you need to replace any parts, always use genuine DeWalt parts. Store the tool in a cool, dry place when not in use.
